Jump to content
Search In
  • More options...
Find results that contain...
Find results in...

Charger for mini quad rotor, picky about usb charging?

corrado33
 Share

Family got a few different types of mini quad rotors for christmas, and in the instructions for one type specifically says "Charge by connecting to computer USB, NOT a USB power supply (like for phones)" Now, I was pretty sure 5V is 5V is 5V regardless of where it comes from. And computer USB can often provide just as much amperage as the wall warts now. So I was super surprised when one of the batteries (out of the two of this type) didn't charge at all when connected to a wall wart, but charged just fine connected to a computer. What's up with that? 

Link to comment
Share on other sites

Link to post
Share on other sites

Usually wall warts provide more amperage, like 2.3 amps for your cellphone battery. It sounds like there might be a safety circuit of sorts, to prevent giving it too much juice. It's the amperage you wanna look at. All USB power will be 5 volts. Go by what the manufacturer says. If you have a wall wart with 5v 1a it will be the same as a USB port on your computer.

Link to comment
Share on other sites

Link to post
Share on other sites

2 minutes ago, TempestCatto said:

Usually wall warts provide more amperage, like 2.3 amps for your cellphone battery. It's the amperage you wanna look at. All USB power will be 5 volts. Go by what the manufacturer says. If you have a wall wart with 5v 1a it will be the same as a USB port on your computer.

Well the charger will only take how much amperage that it wants. It won't take the full 2.3A unless it wants it. And it's a lithium ion battery so it MUST have over voltage protection (unless the company wants to burn a customer's house down.) That's why I'm confused. 

Link to comment
Share on other sites

Link to post
Share on other sites

That's not how I understand it. I know some are made to do that, but they usually specify it. Though, If I'm wrong, I'll take an educational lesson. But as you said, it can protect itself. Over voltage, and I'm sure amperage as well. That's what I think anyway.

Link to comment
Share on other sites

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share


×